Adjustable Circle cutting Jig (for the bandsaw)

I have decided to start experimenting with curves (how hard can it be?). So it occurred to me, as a starting point, that I needed a means of cutting circles. Adjustable too. So here it is. Well version 1.0 anyway..Overall size is about 380mm (18”) x 650mm (26”) by 22mm (7/8”) excluding the locating peg and guide underneath. Materials were just what I had on hand; 11mm chipboard, some lengths of Sapele, an M6 (1/4”) machine screw, washer and wing nut, one 6mm (1/4”) dowel and some 20mm (3/4”) screws..It will cut circles from 50mm (2”) radius to 1000mm (3’ 3 3/8”). For the larger half of the range you slide the adjustable stock out and insert it reversed...Pics are.1. The jig in place, clamped down.2. As seen from the operating position.3. The underside of the jig showing the runner (Sapele) which locates it in the bandsaw table.4. My bandsaw ELU 3401.5. Aligning the locating peg (centre of peg to front edge of bandsaw blade).6. A 55mm MDF circle made with the jig and the 3mm (1/8”) strip I later sawed off of it)...As I said this is version 1.0. There are improvements I’d make to it. If anyone is interested I’ll blog the construction when I make version 1.1

I like the design. I suggestion maybe for version 1.1; maybe cut a slot along the entire width of the jig so that you can loosed up the pin and slide it to the correct radius that you need for your project. By doing this you would not have to keep drilling new holes each time.